A newer version of this notice has been posted. SAM.gov republished solicitation W912DW26BA001 on 14 January 2026. This page is kept because it is a real record, but the current requirement, dates and attachments are on the latest version. Read the latest version →
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This solicitation has closed — responses were due 13 January 2026.
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Description
Please see attached Amendment 0003 for complete details. Willapa Harbor Maintenance Dredging project in Willapa Harbor, Washington. USACE, Seattle District has been tasked to solicit for and award a construction contract to maintenance dredge the Bay Center, Nahcotta, and Tokeland Federal Navigation Channels to their authorized depths. Up to 180,000 CY is expected to be dredged across the three features via mechanical clamshell dredging. The minimum required dredging depth varies from -10 ft (Bay Center and Nahcotta) to -15 ft (Tokeland), MLLW, +2 ft overdepth at each location. In addition, dredging approximately 10,000 CY to a minimum depth of -9 ft MLLW (+1 ft overdepth) may be required in the Bay Center/Palix River Access Lane to ensure sufficient water depths for the dredge, scow, and tugboats to transit between Bay Center and the disposal sites. This amount has the potential to change due to the dynamic nature of the Palix River at its confluence with Willapa Bay. Dredged material will be disposed via bottom dump scow at the Cape Shoalwater open-water dispersive disposal site or the South Channel open-water dispersive disposal site. Work is anticipated to begin in summer 2026. The work window varies by project features. For any given calendar year, the in-water work windows are as follows:? Bay Center/Palix River: 16 Jul through 30 Sep? Nahcotta: 16 Jul through 01 Feb? Tokeland: 16 Jul through 15 FebWillapa Bay presents significant navigational hazards due to its exposed Pacific Ocean entrance, unmaintained channels, shifting shoals, and unpredictable weather. This performance window includes the worst season for storm and marine conditions. The U.S. Coast Guard has removed aids-to-navigation at Willapa Bar because of unreliable conditions, and their Waterways Analysis notes over 50 unreported groundings annually. These hazards present serious safety concerns for contractors and local users, complicating mobilization and dredging operations throughout the project area.In accordance with Federal Acquisition Regulation (FAR) Part 36 , the estimated construction price range for this project is: Between $5,000,000 and $10,000,000. Estimated duration of the dredging activities is 3-7 months. PLEASE SEE THE ATTACHED SOLICITATION, SPECIFICATIONS AND DRAWINGS FOR INSTRUCTIONS ON SUBMITTING A BID IN RESPONSE TO THE SOLICITATION.
Version history
SAM.gov has posted 5 notices under solicitation W912DW26BA001, oldest first.
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